Look at the negative space the letter "M" makes at the top of Hillary's head. Whether by design or by accident, TIME Magazine has adorned her with a set of horns. Fortunately they left out the cloven hooves and tail.
If it was only the cover of TIME, it wouldn't be worth writing about. But the media feeding frenzy has been so obnoxious for so many news cycles now that it's hard to imagine this cover happening by accident.
The story that goes along with this cover is predictably negative, with all of the usual themes. It reads just like you might imagine a petulant press lashing out at them.
As for whether it's an accident, well, here's Zeke J. Miller's tweet, which might be ironic. Or not.